John traveled on a motorbike a distance of 1,500 meters north to get to the nearest shopping center. he then turned back south and rode another 1,450 meters to meet his friend. what was his displacement?

What is a costume plot? why is it important to a film or theater production?

Positive ions differ from neutral atoms in that

Two waves maximally constructively interfere at a point in space. among the options below, select the possible value of their phase difference at that point in space.a. zerob. πc. π/2d. not determinable by the information provided